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- salicylic anhydride 水杨酐
- Aspirin is synthesized through O-acylating reaction from salicylic acid and anhydride acetic acid with anhydrous sodium carbonate as catalyst. 以水杨酸和乙酸酐为原料,采用无水碳酸钠作为催化剂经O-酰化反应合成了阿司匹林。
- Acetylsalicylic acid was synthesized from salicylic acid and acetic anhydride catalyzed by chloride acidation bentonite. 以水杨酸和乙酸酐为原料,在自制酸化膨润土催化下合成了阿司匹林;
- The synthesis of acetylsalicylic acid from salicylic acid and acetic anhydride,using P-toluene sulphonic acid as catalyst was studied. 以水杨酸和乙酸酐为原料,采用对甲苯磺酸作催化剂合成了乙酰水杨酸,采用正交实验法研究了影响反应的因素。
- In this paper, aspirin is synthesised through O-acylating reaction from salicylic acid and anhydride acetic acid with vita-mm C as catalyst. 摘要阐述了以水杨酸和乙酸酐为原料，采用维生素C作催化剂经O-酰化反应合成阿斯匹林。
- Acetylsalicylic acid was synthesized from salicylic acid and acetic anhydride catalyzed by strong-acid cation exchange resin. 以水杨酸和乙酸酐为原料、强酸阳离子交换树脂为催化剂合成阿司匹林。
- Catalytic synthesis of Aspirin over pretreated sodium acetate using salicylic acid and acetic anhydride as starting materials. 以水杨酸和乙酸酐为原料、无水乙酸钠为催化剂合成阿司匹林。
- Who knows what effect acetyl salicylic acid has? 谁知道乙酰水杨酸有什么作用？
- The synthesis of acetylsalicylic acid from salicylic acid and acetic anhydride, using heteropoly acid of silicotungstic acid supported on activated carbon as catalyst was studied. 以水杨酸和乙酸酐为原料,负载型杂多酸为催化剂合成了乙酰水杨酸。
- Acetylsalicylic acid has been synthesized using salicylic acid and acetic anhydride with microwave radiation catalyzed by aluminum chloride. The effecting factors of this method were also discussed. 摘要以水杨酸和乙酸酐为原料，以无水三氯化铝作催化剂，微波辐射合成了乙酰水杨酸，并讨论了影响反应的因素。
- Influence of pH on Yield of DPT Prepared Without Acetic Anhydride. 非醋酐法合成DPT与pH值的关系
- Subject to control the chemicals acetic anhydride, ephedrine etc. . 受管制化学品乙酸酐、麻黄碱等.
- Salicylic acid is opposite after all is the skin good? 水杨酸到底对皮肤好不好?
- Oleum Chimonanthi, camphor, benzoic acid, salicylic acid, vaseline. 蜡梅油、樟脑、苯甲酸、水杨酸、黄凡士林、石蜡。
- Hexahydro-4-methylphthalic anhydride, mixture of cis an... 询价 六氢-4-甲基邻苯二甲酸酐；
- Gentle salicylic acid exfoliate for a healthier-looking complexion. 结合水杨酸精华，令肌肤色泽健康均匀。
- The synthesis of acetyl salicylic acid from salicylic acid and acetic anhydride was studied with microwave radiation and sodium hydrogen sulfate as catalyst. The influential factors upon the reaction were investigated. 以水杨酸和乙酸酐为原料 ,以硫酸氢钠为催化剂 ,微波辐射合成了乙酰水杨酸 ,并考察了影响反应的因素。
- Add the crystalline dihydrate(5g)to acetic anhydride(10??in a beaker. 向盛有10?蟠姿狒?的烧杯内加入5g二水合物结晶。
- N-phenyl maleimide was synthesized from maleic anhydride and aniline. 摘要以顺酐和苯胺为原料，合成N-苯基马来酰亚胺。
- Willow Bark, which naturally contains Salicylic Acid, helps to unclog pores. 能促进细胞再生，有良好的再生修护作用。
